Worked on backend development and configuration management for the alibaba/ChatLearn repository, focusing on stabilizing the ParameterSync warmup process during FP8 runs. Addressed a critical bug that caused hangs during initialization by disabling the warmup by default and introducing a dry-run option, allowing safe verification of the initialization sequence without impacting active training. Implemented a caching mechanism for the set_sync_parameters call to further reduce the risk of hangs and support safer experimentation. Used Python to deliver a targeted fix that restored normal operation and minimized downtime, ensuring a more reliable and auditable warmup path for future FP8 scenarios.